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Published byReid Glad Modified over 10 years ago
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Which is the better Minesweeper design? LogicMinefield Storage LogicMinefield Storage :Logicm:Minefield:Storage mark update(m) :Storage mark update(m) :Logic mark (a)(b) get info m:Minefield
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To Tighten or Loosen: What Makes a Good Component. CS2103/T, Lecture 7, Part 1, [Oct 4, 2013]
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To Tighten or Loosen: What Makes a Good Component.
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To Tighten or Loosen: What Makes a Good Component. Coupling Cohesion
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Coupling
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Component A Component B If I change B, will it require a change in A ? a) NO WAY b) It might Coupling Dependency ==
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Component A Component B Coupling If I change B, will it require a change in A ?
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Component A Component B Coupling If I change B, will it require a change in A ?
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Component A Component B Coupling
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Component A Component B If I change B, will it require a change in A? Yes, It might Reduce coupling
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Good Component design cohesion Reduce coupling
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cohesion
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Does one thing and does it all Component A Component B Component C cohesion
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Component A Window 1 Window 2 Window 3 Does one thing and does it all cohesion
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Component A Component B Component C Does one thing and does it all cohesion
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Component A Component B Component C Increase cohesion Does one thing and does it all cohesion
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Good Component design Reduce coupling Increase cohesion
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Reduce coupling Increase cohesion
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Use these two concepts to justify design decisions.
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LogicMinefieldStorageLogicMinefieldStorage (a)(b)
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LogicMinefieldStorageLogicMinefieldStorage (a)(b) (2 nd attempt) Which is the better design? design2 {a|b} e.g. design2 b design2 {a|b} e.g. design2 b 77577
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